If your computer can’t communicate with benhvienranghammatsaigon.vn"s software update server, you might see one of these messages.
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Error 17Error 1639Errors 3000-3020Error 3194Errors 3100-3999This device isn"t eligible for the requested build
If you see one of these messages and need help updating or restoring your tiện ích ios or iPadOS device, make sure your Mac is up-to-date.If you"re using iTunes, install the latest version of iTunesand try lớn update or restore your device again. If you still can"t update or restore, follow the steps below.
If you have TCP/IP filtering, firewall, or security software installed on your computer, try these steps.
Bypass your internet router. Some routers might block iTunes from accessing the update server. If you"re using a router that isn"t manufactured by benhvienranghammatsaigon.vn, try the following:Disconnect from your wired or wireless router and use an Ethernet cable to connect your computer directly lớn your modem.Restart your computer and modem. Liên hệ your internet service provider for instructions on using your modem.After you confirm your internet connection is working, try lớn update or restore your game ios or iPadOS device again.
Restore or update from another computer
Try to restore or update on another computer with a different mạng internet connection. This helps to make sure there aren"t issues with your computer that might stop itfrom communicating with the update server.
Errors 1639, 3000-3020, and 3100-3999 (with the exception of 3194) are sometimes caused by your network settings. If your computer uses a managed network, refer to lớn your network administrator. Proxies, firewalls, and other network security measures can cause these errors. If necessary, find a different network connection to restore the device. For example, if you"re restoring at work, try to restore at home or on a friend"s computer and network.
Check your hosts file
After you update your Mac or iTunes khổng lồ the latest version, kiểm tra the hosts file to make sure your computer can contact the update server.
Windows
If you’re using a Windows computer, follow the steps from theMicrosoft tư vấn site. Resetting the hosts file affects software services that rely on hosts file redirects. If you"re using Windows on a business computer, consult your IT department lớn be sure applications work correctly after you reset your hosts file.
Mac
If you"re using a Mac, follow these steps:
1. In the Finder, choose Applications > Utilities.
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2. Open Terminal.
3. Type this command & press Return:
sudo nano /private/etc/hosts4. Enter the password you use khổng lồ sign in khổng lồ your computer và press Return. You won"t see text appear in the Terminal window when you type your password.
If you don"t see any entry containing gs.benhvienranghammatsaigon.vn.com, then the hosts tệp tin isn"t related to lớn the issue. Close the Terminal and go to lớn the "Address TCP/IP filtering, firewall, or security software" section of this article.
6. địa chỉ the # symbol và a space ("# ") lớn the beginning of the gs.benhvienranghammatsaigon.vn.com entry.
7. Press Control-O to save the file.
8. Press Return when asked for the filename.
9. Press Control-X khổng lồ exit the editor.
10. Restart your Mac.
After your computer is finished restarting, try to update or restore your quả táo or iPadOS device again.
